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Minéraux pour la classe

Les échantillons de minéraux sont taillés en différentes tailles pour répondre aux besoins variés des utilisateurs, avec des utilisations courantes telles que l’identification par les étudiants, les présentations lors de cours et de démonstrations, ou encore en fragments pour des tests d’identification en laboratoire. Ces spécimens illustrent également plusieurs caractéristiques géologiques classiques, comme le clivage, et les collections peuvent être utilisées pour tester et comparer la dureté Mohs d’autres minéraux.

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Calcite (Chalk)

Calcite (Chalk)

Classic, white chalk, massive; from Cliffs of Dover, England.

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Copper Strips

Copper Strips

Great for geology hardness tests.

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Ward's®	Citrine Quartz

Ward's® Citrine Quartz

Yellow to orange crystal with a glassy luster and smooth, often transparent appearance.

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Ward's® Sodalite

Ward's® Sodalite

Deep blue, massive, with nepheline; key feldspathoid.

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Ward's® Coals, Set Of 4

Ward's® Coals, Set Of 4

A classroom set that covers the major types of coal.

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Ward's® Corundum

Ward's® Corundum

Crystals and crystal sections up to 1", Mohs’ hardness of 9.

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Ward's® Gypsum (Alabaster)

Ward's® Gypsum (Alabaster)

White, fine, massive, opaque to slightly translucent.

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Ward's® Hematite (Oolitic)

Ward's® Hematite (Oolitic)

Red, classic oolitic texture.

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Ward's® Kaolin (Massive)

Ward's® Kaolin (Massive)

Pure, white, earthy “China clay”.

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Ward's® Copper

Ward's® Copper

Cleaned, pure, bright, metallic native copper.

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Ward's® Anorthoclase

Ward's® Anorthoclase

Feldspar group; greenish gray alkali feldspar, coarse crystalline, some iridescence.

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Ward's® Dolomite (Coarse)

Ward's® Dolomite (Coarse)

Coarse, 'salt and pepper': dark pyroxene and light andesine. Provides perfect representation of an intermediate igneous rock.

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Ward's® Hornblende (Crystalline)

Ward's® Hornblende (Crystalline)

Amphibole group; black, coarse, massive.

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Ward's® Hematite (Specular)

Ward's® Hematite (Specular)

Black, Micaceous, glittery metallic.

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Pyrite (Best Grade)

Pyrite (Best Grade)

Shiny crystal clusters and crystalline groups, this 'fools gold' is brassy and leaves a black streak.

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Ward's® Augite

Ward's® Augite

Pyroxene group; dark green, pure cleaved fragments.

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